Generate all extension schema namespaces as "api" and instead vary the generated bundle names.

extensions/browser/api/cast_channel/cast_transport_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/browser/api/cast_channel/cast_transport.h"
 
 #include <stddef.h>
 #include <queue>
 
 #include "base/test/simple_test_tick_clock.h"
@@ skipping 12 matching lines @@
 
 using testing::_;
 using testing::DoAll;
 using testing::InSequence;
 using testing::Invoke;
 using testing::NotNull;
 using testing::Return;
 using testing::WithArg;
 
 namespace extensions {
-namespace core_api {
+namespace api {
 namespace cast_channel {
 namespace {
 
 const int kChannelId = 0;
 
 // Mockable placeholder for write completion events.
 class CompleteHandler {
  public:
   CompleteHandler() {}
   MOCK_METHOD1(Complete, void(int result));
@@ skipping 589 matching lines @@
                           MessageFramer::MessageHeader::header_size(),
                           serialized_message.size() -
                               MessageFramer::MessageHeader::header_size() - 1)),
                       Return(serialized_message.size() -
                              MessageFramer::MessageHeader::header_size())))
       .RetiresOnSaturation();
   EXPECT_CALL(*delegate_, OnError(CHANNEL_ERROR_INVALID_MESSAGE));
   transport_->Start();
 }
 }  // namespace cast_channel
-}  // namespace core_api
+}  // namespace api
 }  // namespace extensions